2021 ICD-10-CM Code H10.9

Unspecified conjunctivitis

Version 2021
Billable Code
Unspecified Code
MS-DRG Mapping

Valid for Submission

H10.9 is a billable diagnosis code used to specify a medical diagnosis of unspecified conjunctivitis. The code H10.9 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code H10.9 might also be used to specify conditions or terms like bacterial conjunctivitis, bilateral conjunctivitis, conjunctivitis, conjunctivitis associated with autoimmune skin disorder, conjunctivitis associated with autoimmune skin disorder , conjunctivitis associated with epidermolysis bullosa, etc.

Unspecified diagnosis codes like H10.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

ICD-10:H10.9
Short Description:Unspecified conjunctivitis
Long Description:Unspecified conjunctivitis

Code Classification

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code H10.9 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Clinical Information

Convert H10.9 to ICD-9 Code

Information for Patients


Pinkeye

Also called: Conjunctivitis

Conjunctivitis is the medical name for pink eye. It involves inflammation of the outer layer of the eye and inside of the eyelid. It can cause swelling, itching, burning, discharge, and redness. Causes include

Pinkeye usually does not affect vision. Infectious pink eye can easily spread from one person to another. The infection will clear in most cases without medical care, but bacterial pinkeye needs treatment with antibiotic eye drops or ointment.

NIH: National Eye Institute


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)